Document And Entity Information	6 Months Ended
	Jun. 30, 2016 shares
Entity Registrant Name	United States Cellular Corporation
Entity Central Index Key	0000821130
Document Type	10-Q
Document Period End Date	Jun. 30, 2016
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Document Fiscal Year Focus	2016
Document Fiscal Period Focus	Q2
Trading Symbol	USM
Common Shares
Entity Common Stock, Shares Outstanding	51,801,561
Series A Common Shares
Entity Common Stock, Shares Outstanding	33,005,877